Is octave_char_matrix still relevant?

[Rik]

12/14/14

John,

I started trying to solve bug #43814 (https://savannah.gnu.org/bugs/?43814)
where the num-to-str warning is never issued.  The code which would issue
the warning is in libinterp/operators/op-chm.cc.  However, this code is
never executed.  Instead, for concatenation the relevant code is in
libinterp/pt-mat.cc in function tree_matrix::rvalue1.  In this routine
everything is done with charNDArray.  In fact a grep for octave_char_matrix
in the parse-tree directory doesn't produce anything.  Has charNDArray
effectively replaced octave_char_matrix?

--Rik